computer issues

[Mainbull]

Hi i bought an 2011 expedition El about 2 months ago and the first month everything was fine. Then multiple indicator lights starts coming on like TCM, check, airbag and wrench light. Also sometimes it wont start, and ac, radio and systems in car shutdown while driving. I replaced battery that was found to be bad and several PCM and TCM related fuses but am still having issues. Have an appt with dealership soon but just wanted to hear about similar experiences.
Thanks

 

[AWAR]

The positive battery post is where they all connect together. Look at both battery post clamps at the battery to see if they are corroded away. The correct replacement ends are available.

 

[GlennSullivan]

Try the battery reset proceedure